Weather in September
September's climate shift is marked by a decline in sea temperature, averaging around 85°F (29.4°C). Despite the wet season continuing, the warmth of the sea still encourages water-based activities such as snorkeling and surfing. The length of daylight begins to shorten, slowly transitioning towards the end of the year. The environment continues to thrive due to the abundant rains, contributing to a picturesque natural look. Witnessing the local fauna adapt to these fluctuating conditions is a highlight for wildlife enthusiasts.
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.
On the first day of September in Guam National Wildlife Refuge, sunrise is at 6:09 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 6:11 pm ChST.
[Resources]Ocean temperature
In Guam National Wildlife Refuge, the average seawater temperature in September is 85.1°F (29.5°C).Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.
Daylight
In September, the average length of the day in Guam National Wildlife Refuge is 12h and 13min.On the first day of September in Guam National Wildlife Refuge, sunrise is at 6:09 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 6:11 pm ChST.
Frequently asked questions
How warm is the water in September in Guam National Wildlife Refuge?
In Guam National Wildlife Refuge, the average seawater temperature in September is 85.1°F (29.5°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
How many hours of daylight does Guam National Wildlife Refuge have in September?
The average day length in September in Guam National Wildlife Refuge is 12h and 13min.
When are sunrise and sunset in September in Guam National Wildlife Refuge?
On the first day of September in Guam National Wildlife Refuge, Guam, sunrise is at 6:09 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 6:11 pm ChST.
Average sea temperature in September
Guam National Wildlife Refuge, GU
- Average sea temperature in September: 85°F
The best month for swimming (with the highest average sea temperature) is August (85.4°F).
The coldest month (with the lowest average sea temperature) is February (82°F).
Average daylight in September
Guam National Wildlife Refuge, GU
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
Guam National Wildlife Refuge, Guam, USA
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